<template>
    <el-breadcrumb class="breadcrumb" separator="/">
        <transition-group name="breadcrumb">
            <el-breadcrumb-item
                v-for="(item, index) in breadcrumbData"
                :key="item.path"
            >
                <!-- 不可点击项 -->
                <span
                    v-if="index === breadcrumbData.length - 1"
                    class="no-redirect"
                    >{{ item.meta.title }}</span
                >
                <!-- 可点击项 -->
                <a v-else class="redirect" @click.prevent="onLinkClick(item)">{{
                    item.meta.title
                }}</a>
            </el-breadcrumb-item>
        </transition-group>
    </el-breadcrumb>
</template>

<script setup>
import { ref, watch } from 'vue';
import { useStore } from 'vuex';
import { useRoute, useRouter } from 'vue-router';

const route = useRoute();
// 生成数组数据
const breadcrumbData = ref([]);
const getBreadcrumbData = () => {
  breadcrumbData.value = route.matched.filter(
    (item) => item.meta && item.meta.title
  );
};
// 监听路由变化时触发
watch(
  route,
  () => {
    getBreadcrumbData();
  },
  { immediate: true }
);
// 处理点击事件
const router = useRouter();
const onLinkClick = (item) => {
  router.push(item.path);
};
// 将来需要进行主题替换，所以这里获取下动态样式
const store = useStore();
// eslint-disable-next-line
const linkHoverColor = ref(store.getters.cssVar.menuBg);
</script>

<style lang="scss" scoped>
.breadcrumb {
    display: inline-block;
    font-size: 14px;
    line-height: 50px;
    margin-left: 8px;

    .redirect {
        color: #666;
        font-weight: 600;
        cursor: pointer;
    }
    .redirect:hover {
        // 将来需要进行主题替换，所以这里不去写死样式
        color: v-bind(linkHoverColor);
    }

    ::v-deep .no-redirect {
        color: #97a8be;
        cursor: text;
    }
}
</style>
